Motion sensor light bulb



FIG. 1 is a front view of a motion sensor light bulb showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left view thereof;

FIG. 4 is a right view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a perspective view thereof.

The broken lines in the figures show portions of the printer that depict environmental subject matter and/or an unclaimed boundary line, forming no part of the claimed design. 

CLAIM The ornamental design for a motion sensor light bulb, as shown and described. 